Steam bake-oven



(No Mod-e1.) 2 Sheets-Sheet 2.

. A. SPANGLER.

STEAM BAKE OVEN.

Patented July-l4, 1896.

INVENTOH By Jmm A 7'TOHNEYS.

PATENT FFICE.

ADAM SPANGLER, OF SILVERTON, OREGON.

STEAM BAKE-OVEN.

SPECIFICATION forming part of Letters Patent No. 564,116, dated J'uly14, 1896.

Application filed June 21,1895. Serial No 553,581. (No modeI.)

To all whom it may concern:

Be it known that I, ADAM SPANGLER, of Silverton, in the county of Marionand State. of Oregon,have invented a new and Improved Steam Bake-Oven,of which the following is a full, clear, and exact description.

The object of the invention is to provide a new and improved steambake-oven which is simple and durable in construction, very effectiveand economical in operation, and arranged to bake perfectly, and to givebread or other material to be baked a fine luster, and without danger ofburning.

The invention consists of certain parts and details and combinations ofthe same, as will be fully described hereinafter, and then pointed outin the claims.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the figures.

Figure 1 is a front elevation of the improvement. Fig. 2 is a sectionalside elevation of the same on the line 2 2 of Fig. 1. Fig. 3 is atransverse section of the same 011 the line 3 3 of Fig. 4. Fig. {i is asectional plan view of the same on the line 4 4 of Fig. 3, and Fig. 5 isan enlarged sectional side elevation of the lamp-support.

The improved steam bake-oven is provided with a brickwork A, in which isformed a combustion-chamber B, provided with a grate 0, below which isarranged an ash-pit D. Doors B and D lead to the combustion-chamber Band the ash-pit D, respectively, to introduce the fuel and to remove theashes in the usual manner.

From the ends of the combustion-chamber B and on'opposite sides lead theopenings E into longitudinallyextending channels E,-

formed in the brickwork A, and connected at their forward ends withchimney-fines F. On

the top of the brickwork A, directly over the combustion-chamber B,channels E and openingsE is set a metallic shell G, made of sheet metalor similar material, and formed in its bottom with a boiler H,containing the water to be heated by the fire burning in thecombustion-chamber B to generate steam. This boiler H is connected byapertures H with steam-spaces H divided longitudinally by a chamber H toform the ovens I and I, of

which the oven I is located directly above the boiler H and supported bybrackets H and the oven I is located between the chamber H and the topsteam-space. The boiler- H may be provided with the usual fines, ifdesired.

By the arrangement described the steam generated in the-boiler Hsurrounds the ovens I and I at the bottom, top, sides, and rear, as isplainly shown in the drawings.

The front ends of the ovens I and Iare provided with suitable doors Iand I for inserting the bread or other material to be baked, or removingthe same from the ovens wheneverthe baking process is completed.

Into the front ends of the ovens I and 1 project the steam-supply pipesJ and J, respectively, each provided with a valve J and both connectedwith a pipe J leading to the steam-spaces in the boiler H. Thus, whenthe valves J are opened, steam can pass from the steam-spaces of theboiler into the ovens. The ovens are also provided at their front ends 75 with windows K, in front of each of which is placed a lamp supportedon a hinged bracket L, provided with a casing L and a reflector L forthrowing the rays of light through the windows K to the inside of theoven to illuminate the lattter and to permit the baker to View thecontents of the oven.

Water is supplied to the boiler H by a suitable supply-pipe N, and thesaid boiler is provided with a blow-off pipe N, shown in Fig. 2. On oneside of the boiler is arranged a water-gage 0, (see Fig. 1,) and on thetop of the steam-spaces H. is arranged a safety-valve Q. A gage P isalso provided for the steamcompartment. I 0

It will be seen that by the arrangement described the fuel burned in thecombustionchamber B 011 the grate O is utilized to the fullestadvantage, as the heat and gases travel under the boiler H both in thecombustion- 5 chamber and in the return-channels E before escaping tothe chimneys. It will further be seen that as the ovens I and I arecompletely surrounded by steam-spaces, with the exception of the front,a uniform heat is produced inside of the ovens, so that the bread. orother material will be perfectly baked.

By providing the steam-supply pipes J and J any desired amount of steamcan be in- ,iected into the said ovens, so that moist heat is obtainedwithin the ovens, and consequently perfect baking of the material takesplace, and a finer luster is given to the same.

By the use of the valves or stopcocks J any desired amount of steam maybe let into the ovens. As very little steam is used, the boiler requiresrefilling with water but once in twelve to twenty-four hours duringcontinuous use of the oven.

Having thus fully described my invention, I claim as new and desire tosecure by Letters Patent- 1. A steam bake-oven, comprising a comsaidoutlet-channels being arranged at opposite sides of thecombustion-chamber and connecting with chimney-fines at their forwardends, a boiler set over the said combustionchamber and channels andforming the top thereof, a steam chamber communicating with the saidboiler, one or more ovens setin the said steam-chamber, and valved pipesconnecting the said steam-chamber with the interior of the ovens,snbstai'itially as shown and described.

3. A steam bake-oven, comprising a furnace having a combustion-chamberand provided with longitudinally-extending return outlet-channels forthe smoke and gases, the said channels being located at opposite sidesof the oombustion-chamber and communicating at their rear ends with thesaid combustion-chamber and connected with chimneyflues at their forwardends, a metallic shell set over the said combustion-chamber andchannels, and forming the top th ereof, a boiler in the bottom of saidshell, an oven supported in the said shell directly above the boiler, 21second oven located abovethe first oven, said ovens being separated fromeach other and from the walls of the shell at the top, bottom,

sides, and rear by steam-spaces connnunicating with the boiler, andpipes located at the front of the oven and provided with valves, thesaid pipes extending into the ovens and connected with a pipe leading tothe steamspaces, substantially as shown and described.

ADAM SPANGLER.

XVitnesses F. G. SoMERs, J. S. 000K.

